Charles Walker Clark (November 3, 1871 – April 3, 1933), was an American businessman and the eldest son of William Andrews Clark Sr., one of the Copper Kings.
He served as the manager and later as chairman of the United Verde Copper Company in Jerome, Arizona. Together with his father and his brother, he was also a partner in a bank in Butte, Montana.
Clark was elected to The Lambs in 1898 as a non-professional member, non-resident.
He resided at El Palomar, an estate in San Mateo, California he purchased in 1902, which had its own polo field and racetrack. According to Pulitzer Prize author Bill Dedman, he also had “the longest private railcar ever built, which he sold to Howard Hughes.”
Clark died of pneumonia on April 3, 1933 in New York City. He was buried in Woodlawn Cemetery in The Bronx.